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United States Department of Transportation United States Department of Transportation

Estimated U.S. Emissions of Nitrogen Oxides

(Million short tons)

Dataset Table:

Year TOTAL Highway vehicles Off-Highway Fuel combustion 1
1970 26.88 12.62 2.65 10.06 2
1975 26.38 12.06 2.97 10.49 3
1980 27.08 11.49 3.35 11.32 4
1985 25.76 10.93 3.58 10.05 5

Embedded Dataset Excel:

Dataset Excel:

table_04_46_060420.xlsx

Notes:

Details may not add up to totals due to rounding in the source.

Description:

KEY: R = revised.

aIndustrial processes consists of chemical and allied product manufacturing, metals processing, petroleum and related industries, and other industrial processes; and solvent utilization, storage, and transport.

Source:

U.S. Environmental Protection Agency, Air Emissions Inventories, Air Pollutant Emissions Trends Data, National Annual Emissions, available at https://www.epa.gov/air-emissions-inventories/air-pollutant-emissions-trends-data as of May 7, 2020.

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